Vulnerability record · CVE-2019-18839 · published 13 November 2019
CVE-2019-18839: Fudforum os command injection vulnerability
Fudforum · Fudforum
FUDForum 3.0.9 is vulnerable to Stored XSS via the nlogin parameter. This may result in remote code execution. An attacker can use a user account to fully compromise the system using a POST request. When the admin visits the user information, the payload will execute. This will allow for PHP files to be written to the web root, and for code to execute on the remote server.
Description
FUDForum 3.0.9 is vulnerable to Stored XSS via the nlogin parameter. This may result in remote code execution. An attacker can use a user account to fully compromise the system using a POST request. When the admin visits the user information, the payload will execute. This will allow for PHP files to be written to the web root, and for code to execute on the remote server.
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
Affected products
1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.
References
| Link | Tags |
|---|---|
| https://github.com/fuzzlove/FUDforum-XSS-RCE | ExploitThird Party Advisory |
| https://packetstormsecurity.com/files/155261/FUDForum-3.0.9-Code-Execution-Cross-Site-Scripting.html | ExploitThird Party AdvisoryVDB Entry |
| https://github.com/fuzzlove/FUDforum-XSS-RCE | ExploitThird Party Advisory |
| https://packetstormsecurity.com/files/155261/FUDForum-3.0.9-Code-Execution-Cross-Site-Scripting.html | ExploitThird Party AdvisoryVDB Entry |
Track CVE-2019-18839 inside VULONE
Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.
Related vulnerabilities
Same products first, then exploited flaws of the same weakness class.
Source: NIST National Vulnerability Database (record CVE-2019-18839), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.
